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1. Knight P9.60 A 90.0 kg firefighter needs to climb the stairs of a 20.0 m tall building while carrying a 40.0 kg backpack filled with gear. How much power does he need to reach the top in 55.0 seconds?

1. Knight P9.60 A 90.0 kg firefighter needs to climb the stairs of a 20.0 m tall building while carrying a 40.0 kg backpack filled with gear. How much power does he need to reach the top in 55.0 seconds?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Useful information gravitational acceleration Gravity Power Momentum Impulse P = Newton's 2nd law AE sys At P = F cos 0 vx Fg = -mg Ug = mgy Ap= 1 = 9.8 m/s² || →>> p = mv Ap At 个 F(t) dt dE sys dt Tot → area under the F-t graph dp dt F I t
Transcribed Image Text:Useful information gravitational acceleration Gravity Power Momentum Impulse P = Newton's 2nd law AE sys At P = F cos 0 vx Fg = -mg Ug = mgy Ap= 1 = 9.8 m/s² || →>> p = mv Ap At 个 F(t) dt dE sys dt Tot → area under the F-t graph dp dt F I t
- Questions 1. Knight P9.60 A 90.0 kg firefighter needs to climb the stairs of a 20.0 m tall building while carrying a 40.0 kg backpack filled with gear. How much power does he need to reach the top in 55.0 seconds?
Transcribed Image Text:- Questions 1. Knight P9.60 A 90.0 kg firefighter needs to climb the stairs of a 20.0 m tall building while carrying a 40.0 kg backpack filled with gear. How much power does he need to reach the top in 55.0 seconds?
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